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Which of the following is true about a solution with pH = 5? Answer a. the solution is basic b. the OH- concentration > H+ concentration c. the solution is acidic d. both a and b
Calculate the distance NH3 gas and HCl gas would travel if a 100.0-cm tube were used, based on the accepted molar mass of the two gases
When 5.00 g of Cr2O3 are allowed to react with 12.00 g of CCl4, if the yield in such experiment is 85.05? which reactant is left over of CrCl3 are obtained? Cr2O3 + 3 CCl4 → 2 CrCl3 + 3 COCl2
Grignard reagents can act as both a nucleophile and a base. Consequently, what would you expect to happen if that during the preparation of the phenylmagnesium bromide Grignard reagent
Compute the change in temperature when 1 g sodium chloride is dissolved in 250.0 mL of water is initially at 27 C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl.
How many moles of nitrogen are required to fill a 3.50 L tank at 25.0 oC to a final pressure of 8.74 atm
What amino acids are preferred for this polypeptide? Draw the side chain structure of each amino acid that can be used for this polypeptide. Label them with both three letter and single letter codes.
Alcohols are less volatile than ethers of the same molecular weight, but the two classes of compounds have approximately the same solubility in water because:
The pH at the half-neutralization point. Enter only numbers in your answer. (Do not include units.) (d) The pH at the equivalence point.
What is the theoretical yield of hydrazine, in grams, prepared from the reaction of 125.0 mL of 0.500M NH3(aq) with 25.0mL of 1.70M NaOCl (aq)?
Calculate the number of moles of O2 required to react with phosphorus to produce 5.50 g of P4O6. (Molecular mass P4O6 = 219.9 g/mol.)
Explain the meaning of the term condensation reaction in organic chemistry. 3.) explain how you would show experimentally that 2 particular organic compounds were optical isomers of each other.
Why does ionic bonding almost always result in a solid rather than ion-pair molecules
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